factordbrpc · fdb
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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009043221955 800 digits created 2026-08-03

Value

72360473593603841429827045741430530089895849613748359775737390455238567299240921953904152785730703535042408083926494716916710260091290055468802152541044196580699391494427109970244471669153895836655526272601091037779332230036311353072180703184634231280514774100594944075013619221913006100858421202297831166566038845748017729755639867379270944713505073452337894816473946486291616437035039251365737624398508238222039422518429419863445465150080562902456988999441159221902978053037465057596550204060787028017523502530147102368096821150344359853188871647380245493827712152351743977379565871049996801210027616005508590381671150094109139905621314639411532239284504265673714295238260799272789854273113507373019986450906298899863073147735370444740035945774050294727783905748499243074266000525340824197064149539
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 45 of the certificate chain of a 1,351-digit prime (104 intermediate primes).

Certified number1,351-digit prime
Certificatedownload
Certificate chainshow step 45 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043221955 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009043221955},"decimal":true,"detail":2}}'